Log In
New Account
Sitemap
Home
Specimen Search
Search Collections
Map Search
Exsiccati Search
Images
Browse
Search
Flora Projects
State Inventories
Indiana
Ohio
Wisconsin
Aquatic Invasive Plant Guide
Interactive Tools
Dynamic Checklist
Dynamic Key
Crowdsource
Symphyotrichum pratense
(Raf.) G.L. Nesom
Family:
Asteraceae
Prairie American-Aster,
more...
barrens silky aster
[
Aster pratensis var. texicola
Raf.,
more
Symphyotrichum sericeum var. microphyllum
]
FNA
Resources
Luc Brouillet, John C. Semple, Geraldine A. Allen, Kenton L. Chambers, Scott D. Sundberg+ in Flora of North America (vol. 20)
Perennials,
40-60 cm, cespitose, eglandular; with cormoid, woody caudices.
Stems
5-10+, ascending to erect (brown), glabrous or sparsely strigose distally.
Leaves
(grayish green) firm, margins entire; basal withering by flowering, sessile, blades (1-3 nerved) elliptic-lanceolate, 20-40 × 10-20 mm, bases attenuate, margins usually entire, rarely remotely serrate, piloso-ciliate, apices acute to obtuse, faces piloso-scabrous; proximal cauline withering by flowering, sessile, blades oblanceolate, 20-30 × 5-13 mm, reduced distally, bases rounded, subclasping, margins entire, scrabrous, apices acute to obtuse, cuspidate-mucronate, faces glabrous or moderately strigose or ± scabrous; distal sessile, blades oblong-lanceolate, 15-25 × 4-6 mm, bases cuneate, margins entire, apices acute, white-spinulose, faces glabrate to moderately strigose or ± scabrous.
Heads
in open, paniculiform arrays (1-5+ per branch).
Peduncles
glabrous or sparsely strigose, bracts oblong-lanceolate, grading into phyllaries.
Involucres
narrowly campanulate, 6-11 mm.
Phyllaries
in 3-4 series, outer broadly lanceolate, flaring distally , inner linear-lanceolate, subequal, outer foliceous, bases (tan) ± indurate, margins long-piloso-ciliate, green zones foliaceous (outer), apices sometimes purplish, acute (outer) to acuminate (inner), faces glabrous or sparsely short-pilose.
Ray florets
13-15(-36); corollas rose-purple, laminae 8-13 × 1-2 mm.
Disc florets
16-34(-48); corollas pink turning purple, 4.5-7.5 mm, tubes shorter than narrowly funnelform throats (sometimes thinly puberulent), lobes triangular, 8-13 mm.
Cypselae
tan to light brown, obovoid, not compressed, ± 3 mm, 5-8-nerved, faces glabrous;
pappi
tan, 3.5-6 mm.
2
n
= 10, 20.
Flowering Oct-Nov. Prairies, oak woodlands, pine-oak scrub, fields, roadsides; 0-500 m; Ala., Ark., Fla., Ga., Ky., La., Miss., Tenn., Tex., Va.
Open Interactive Map
Click to Display
100 Initial Images
- - - - -
View All Images
Powered by
Symbiota